public async Task <IActionResult> SetMainPhoto(int userId, int id)
        {
            if (userId != int.Parse(User.FindFirst(ClaimTypes.NameIdentifier).Value))
            {
                return(Unauthorized());
            }

            var user = await _socialRepository.GetUser(userId);

            if (!user.Photos.Any(p => p.Id == id))
            {
                return(Unauthorized());
            }

            var photoFromRepo = await _socialRepository.GetPhoto(id);

            if (photoFromRepo.IsMainPhoto)
            {
                return(BadRequest("This is already the main photo."));
            }

            var currentMainPhoto = await _socialRepository.GetMainPhotoFromUser(userId);

            currentMainPhoto.IsMainPhoto = false;

            if (await _socialRepository.SaveAll())
            {
                return(NoContent());
            }

            return(BadRequest("Could not set to main"));
        }